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Lens driving motor, camera device comprising same and mobile terminal

A lens drive and motor technology, applied in focusing devices, electromechanical devices, installation, etc., can solve the problems of high cost and inconvenient assembly, and achieve the effects of reducing loss, simplifying product structure, and focusing quickly and accurately

Pending Publication Date: 2021-04-16
SHANGHAI BILLU ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this structure has the disadvantages of high cost and inconvenient assembly.

Method used

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  • Lens driving motor, camera device comprising same and mobile terminal
  • Lens driving motor, camera device comprising same and mobile terminal
  • Lens driving motor, camera device comprising same and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0045] See figure 1 , which shows an exploded view of an exemplary structure of the lens driving motor of the present invention.

[0046] according to figure 1 , the lens driving motor mainly includes a winding carrier 1, a driving coil 2, an upper spring 3, a lower spring 4, a base 5, a housing 6, a driving magnet 7, a Hall chip 8, and a Hall magnet 9, wherein,

[0047] The casing 6 is covered on the base 5, and the winding carrier 1, the driving coil 2, the upper spring 3, the lower spring 4, the driving magnet 7, the Hall chip 8, and the Hall magnet 9 are accommodated in the structure formed by the casing 6 and the base 5. in the accommodation space, such as figure 2 shown;

[0048] The inner circular hollow position of the winding carrier 1 is used to install the lens (the lens is not shown in the figure). As a movable part, the winding carrier 1 can drive the lens to the target position together. The winding carrier 1 and the lens are collectively called a lens module...

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Abstract

The invention discloses a lens driving motor, a camera device comprising the same and a mobile terminal. The lens driving motor comprises a winding carrier, a driving coil, an upper spring connected to the upper portion of the winding carrier, a lower spring connected to the lower portion of the winding carrier, a base, a shell covering the base, and driving magnets arranged on the opposite inner side walls of the shell. The lens driving motor further comprises a Hall chip arranged on the base and a Hall magnet arranged on the winding carrier, and the Hall chip and the Hall magnet are oppositely arranged in the Z-axis optical axis direction. A circuit connection structure is embedded in the base, the circuit connection structure can connect the Hall chip to a power supply and can transmit a current signal of the Hall chip to the lower spring, and then the lens driving motor can add current to the driving coil through the lower spring and drive the winding carrier to move.

Description

technical field [0001] The invention relates to a lens driving motor which can be used in the camera function of a mobile phone, a camera device including the motor, and a mobile terminal. Background technique [0002] Autofocus is a widely used feature in cameras. Autofocus can be used in mobile phones, hand-held and surveillance cameras, still cameras and video cameras. [0003] The lens drive motor is a device used on the autofocus camera of portable terminal equipment such as mobile phones. The closed-loop motor is a type commonly used in existing lens drive motors. Patent document CN106443949A discloses a lens drive device as a closed-loop motor. structure, in the structure of the lens driving device shown in this document, the Hall chip is arranged in the PCB board (flexible printed circuit board), and assembled to the circuit board through body connection (bonding), through the inside of the PCB board The flexible printed circuit is connected to the power terminal. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/09G03B13/36H02K41/02H02K11/215
CPCH02K41/02G02B7/09G03B13/36H02K11/215
Inventor 龚高峰王建华唐利新
Owner SHANGHAI BILLU ELECTRONICS CO LTD
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